code: def test_close_no_hang_after_init(self, multithreading):
      env = self._make_batched_py_environment(multithreading)
      env.close()
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import collections
  import functools
  from absl.testing import parameterized
  import numpy
  import tensorflow
  from tf_agents.environments import batched_py_environment
  from tf_agents.environments import random_py_environment
  from tf_agents.specs import array_spec
  from tf_agents.trajectories import time_step
label_desc: Use image node_id 5 for calling the BatchedPyEnvironmentTest obj's underlying member method code with example usage: obj.test_close_no_hang_after_init(multithreading) without return types